Answer:
Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.
Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.
Step-by-step explanation:
The general formula is y = mx +b.
m = slope.
b = y-intercept of the line
22.50-3.75= 18.75
18.75/1.25= 15
1.25 × X = total money left after purchases.
Answer:
See Explanation
Step-by-step explanation:
<em>The question is incomplete as the function is not given. However, the following explanation will guide you.</em>
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The average rate of change is calculated using;

Where

Take for instance;
The function is:

We have to solve for f(-1) and f(5);
i.e.


Substitute -1 for a and 5 for b




Substitute values for f(5) and f(-1)




<em>Apply this steps in your work</em>
Answer:
21C
22D
23B
24C
25A
Step-by-step explanation: